Post a New Question

math

posted by .

I want to know why [5-5cos(square)(filter)] is equal to [5sin(square)(filter)]
Do you guys know what I mean? sorry for that I can't type (square and filter) signs

  • math -

    First of all, what is this "filter" you are talking about?
    Is "filter"supposed to be a variable.
    I will assume that it is, and will replace it with x
    so you state
    5 - 5cos √x = 5sin √x
    Secondly, this is not true for all x's as you state.
    All I need in one counterexample to show the equation is not true as an identity.
    e.g. let x = .25
    LS = 5 - 5cos √.25
    = 5 - 5cos .5
    = .621...
    RS = 5sin √.25
    = 5sin .5 = 2.39...

    Are you solving the equation?
    Let me know before I get into that.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physical Science Question 1

    What type of light passes through a polarizing filter?
  2. Physics

    If the critical frequency of a low-pass filter is 5 kHz, what is the filter bandwidth?
  3. Calculus

    A cone-shaped coffee filter is draining at a rate of 20 in^3 /min. The filter has a diameter of 8 inches. the radius of the filter is 2/3 the height. how fast is the coffee level falling when the coffee is 3 inches deep?
  4. Mathematics Ms Sue help

    A high pass filter with a cutoff frequency of 250 kHz is placed in a circuit after a low pass filter with a cutoff frequency of 150 kHz. Together, these filters create which type of filter?
  5. Excel Filtering

    Hi I'm trying to filter data between 3 different columns. I want it so the data filtered so data in column a is smaller than column b, which is smaller than column c. I try to filter but it only allows me to use filter criteria from …
  6. science

    What type of prac do you think you need to use a filter funnel and filter paper. please help quickly
  7. Technology

    the filter feature excel allows you to look at what data?
  8. Technology Education

    the filter feature excel allows you to look at what data?
  9. Electronics

    Is a circuit a bandpass filter only when it's a high pass filter followed by a low pass filter?
  10. math

    Janine is considering buying a water filter and a reusable water bottle rather than buying bottled water. Will doing so save her money?

More Similar Questions

Post a New Question